Gets a direct reference to the format buffer.
#include "ltmm.h"
Language | Syntax |
---|---|
C | HRESULT IltmmMediaTypeDisp_get_Format(pMediaTypeDisp, pVal) |
C++ | HRESULT get_Format(pVal) |
Pointer to an IltmmMediaTypeDisp interface.
Pointer to a variable to be updated with a VARIANT containing a SAFEARRAY reference. The array is composed of a single dimension of bytes. This array contains the format information based on the format type.
Value | Meaning |
---|---|
S_OK | The function was successful. |
<> S_OK | An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
This routine will allow direct access to the format buffer for in-process servers. However, if the interface is marshaled across process boundaries, then the client will only be accessing a copy of the data. In such a case, the client should call IltmmMediaTypeDisp::SetFormatData to alter the contents of the format buffer.
The array referenced by pVal cannot be resized. To resize the format buffer, call IltmmMediaTypeDisp::put_FormatSize and then call IltmmMediaTypeDisp::get_Format again.
If the function succeeds, the caller must free the VARIANT referenced by pVal by calling the VariantClear function.
Win32, x64.
Language | Example |
---|---|
C | Splitting an AVI File into Multiple Bitmaps Using ltmmSampleTarget |
C++ | Splitting an AVI File into Multiple Bitmaps Using ltmmSampleTarget |
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